Headphone ear cushion attachment mechanism



FIG. 1D is a perspective view of a headphone ear cushion attachment mechanism in a configuration where two parts are together showing the new design;

FIG. 2D is a second perspective view thereof;

FIG. 3D is a front view thereof;

FIG. 4D is a rear view thereof;

FIG. 5D is a top plan view thereof;

FIG. 6D is a bottom plan view thereof;

FIG. 7D is a left side view thereof; and,

FIG. 8D is a right side view thereof. 

CLAIM The ornamental design for headphone ear cushion attachment mechanism, as shown and described. 